Just got mine today - that hum/buzzing soundā¦it makes me want to return it ASAP.
Iāll give it another week or two, but yeahā¦not a great first impression 
Pull the power tube out, run it with just the preamp tube in for three days.
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Safe to say the āpower tubeā is the large one in the back? Yes, youāre still dealing with a noob here 
Yup. Leave the little one in, big one out. Keep it on for sometime. I did about three or four days on my DV I do believe.
I did this straight-away and I had heard of it on DV enough times as a fix for this common occurrence.
I didnāt even try it straight-away to find out if I had the hum. I wish you luck!
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It took a full 7 days for my tungsol pre tube to fully stop humming. Sucks it took a bit but still loving it.
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Great to hear! What did the trick, just usage?
Buzz got much less audible after the 72 hour burn in and then a gradual decline with regular usage afterwards. Gonna try out a shuguang and or psvane next.
Update on the buzz - it goes completely away when I plug the amp to a dongle DAC via an RCA-to-3.5mm cable.
Makes me wonder if my JDS Element II shouldnāt be used as a DAC for this amp? 
Makes me wonder if that is another case of a Ground Problem. IIRC someone had a similar humming/buzzing issue with a different amp that went away by adding a ground point to the amp.
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Buzzing aside, this amp has quickly become a favorite of mine. Iām blown away by what Iām hearing about 80% of the time with this thing, especially with the HD 6XX.
I was THIS close to selling my 6XX as I just didnāt think they sounded great. Boy was I wrong.
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Yep me with the MT-604ā¦every time I touched the chassis the humming went awayā¦bought a grounding cable and all good now 
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Agreed. hd6__ and dt 880 600 ohm were all meh on my magni/modi stack. Upgraded to this and modi multibit and Iām so damn happy everytime I fire them up.
how would you compare the sound of this vs element 2? I feel that element 2 already makes 6xx sound almost perfect but Iām really curious how different it sounds with ta-26.
I got a Feliks Audio MK2 for my HD600 and am convinced those Sennies are meant to be run off of tubesā¦ they just sound awesome then, right?
The buzzing is likely a result of a ground loop or a mismatch of the output/input impedance of the rca connections. Do you have both the Element and the TA-26 on the same power strip?
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Iām new to this hobby, so Iāll try explaining as best as I can 
The 6XX really opens up with the TA 26. Itās a more fun and lively listening experience. One could argue the Element sounds more accurate (and narrow), but I would never choose it over the TA 26 because itās not as fun a listening experience to me.
Just saw the below review and found it to be VERY insightful. The 6XX is mentioned here too, so take a look!
I forgot to share an update about the buzzing issue. At this point, I no longer notice it! Perhaps there was a burn-in period that did the trickā¦not really sure.
Yep, just tripled-checked and thereās no buzzing at all (from the headphones) right now
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Sweet. Then it most like was one of the tubes. This can happen.
Thank you again ā I got rid of the buzz on my new tubes in less than a day! Itās not completely gone yet, but itās barely audible now.
Pull the power tube out, run it with just the preamp tube in for three days.
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Tube Recommendations
Iām really enjoying this tube combo for the TA 26:
- Vacuum Tube - Shuguang Treasure CV181-Z (adds a lot of warmth to the tube sound)
- Power Tube - Winged āCā tube (so damn smooth)
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